INSTALLATION
MANUAL
SEAKEEPER 3 90378 4 9 of 15
Section 1: MECHANICAL INSTALLATION
1.4.2 Transfer of Holes to Boat Structure
1) Lower assembled fixture onto hull structure.
2) The four areas where the feet of
the Seakeeper will rest should be
coplanar to within .06” (1.5 mm).
See Figure 10.
3) Align fixture in desired location and
transfer holes from fixture plate to
the hull structure. Note that holes in
fixture plate are ø0.64 (16.256 mm).
4) Remove fixture and drill and tap
M16X2.0 Helicoil threaded insert
holes in hull structure at marked
locations to mate with holes in the
Seakeeper foundation. Take
special care to drill perpendicular
to mounting surface. A drill guide
is recommended. Remove any
impeding obstructions.